Opening grill



April 25, 1961 B. coNEs 2,981,327

OPENING GRILL Filed Aug. 24, 1959 2 Sheets-Sheet l IFlEr.- l M April 25,1961 B. coNEs 2,981,327

OPENING GRILL Filed Aug. 24, 1959 2 Sheets-Sheet 2 IFIE'r.- 3

11m/ENTER EEN EUNES :nav Q Ar'rcmnav Unite Staes Patent O QPENING GRELBen Cones, 5130 Pleasant Run, Parkway, North Drive, Indianapolis 19,Ind.

enea Aug. 24, i959, ser. No. 835,734

1 claim. (ci. 16e- 378) This invention relates to a grill for placementover openings, such for example, as in heating systems Where there is acold or warm air duct having an opening into grill which has flexibleguard members thereacross and which will not be bent out of shape byimpact of articles thrown thereagainst.

A further primary object of the invention is a provision of a mostsightly grill together with -a low cost of production.

These and many other objects and advantages of the invention will becomeapparent to those versed in the art in the following description of oneparticular form of the invention which is made in reference to theaccompanying drawings, in which Fig. l is a view in front elevation ofagrill embodying the invention; p

Fig. 2 is a view in end elevation and partial section;

Fig. 3` is a view in rear elevation and partial section.

The grill generally designated by the numeral 10 having a shapeconforming to the opening over which the grill is to be mounted. In theform herein shown, the frame 11 is rectangular in shape for arectangular opening. The frame 11 has a front face 12 from which eX-tends rearwardly a llange 13 entirely around the frame, spaced inwardlyfrom the edge 20 of the frame so that the frame portion 12 may overlapthe margin of the opening all in the usual and well known manner.

A length of cable, llexible in nature and generally designated by thenumeral 14 is threaded back and forth through openings in theange 13,starting from one end portion 15 lying along the outer side of a ange 13on one side and carried through the holes 21 formed in the flange 13 onopposite runs thereof. For example, from the length 15 outside of theflange 13, the cable continues by a run 14a from the flange side 13aacross the opening to theother ange side 13b, through a holertherein tohave this run 14a parallel to the end portion of the ange 13C; thence bya loop 14b on the outside of the flange portion 13b and thence backacross the opening by the run 14e through a hole in the flange portion13a, the run 14e being parallel to the run 14a and this threading iscontinued entirely across the grill to have the opposite cable endportion 16 carried from the last hole 21 in the flange portion 13a downalong the side thereof. The end portions 15 and 16 engaged with the hookends 17 and 13 of a turnbuckle 19.

Thus by operation of the turnbuckle 19, the cable may be pulled into ataut condition to have the runs all pulled up tightly so as to bewithout sag, and to be in parallel alignment as indicated in Figs. 1 and3. Preferably the margins of the holes 16 are rounded somewhat so thatthe cable will slip therethrough easily as the turnbuckle 19 is adjustedto increase the tautness of the cable. In small size grills,particularly, one single length of a cable may be employed as shown inthe drawings, and the diameter of the .cable or gauge thereof may bemade in accordance with the size of the grill opening, smaller diametersbeing employed in smaller grills.

As above indicated, the cable offers a flexible resistance to anyarticles striking the cable, and this is particularly good ingymnasiums, Where basketballs and the like may strike the grill. Theflexible cable or Wire will return to its normal straight line extentacross the grill'after such impact, and if it does not, then theturnbuckle 19 may "be adjusted to again tighten the cable to bring thevarious runs into straight lines.

Therefore itis to` be seen that I have produced a unique, but mostservicable grill in a very simple form. `While I have shown anddescribed the grill in the one particular form, it is obvious thatstructural Variations may be employed without departing from the spiritof the invention, and I therefore do not desire to be limited to thatprecise form beyond the limitations which may be imposed by thefollowing claim.

I claim:

A protective grill comprising a rigid unitary frame having a border facewith an opening therethrough, and a ange extending rearwardly from andaround the margin of said opening, said ange'having a plurality of holestherethrough in two opposing sides thereof; a ilexible cable threadedback and forth through said openings starting from one cable end portionthrough the first hole .in one side across the grill opening through thefirst hole in the other ilange side, along the outerside of 'said otherside to and through the second hole therein, across the grill opening.to and through the secondv hole in said one side, thence along theoutside ofthe one side and through the'second hole in said one side andback and forth through the other holes in the two `sides to emergefinally from the last hole in said one side by the other cable .endportion; said two portions extending along the outer side of said oneside; and a turnbuckle interconnecting said two cable ends for pullingon those ends to tighten the entire cable length.

rReferences Cited in the le of this patent UNITED STATES PATENTS AngliaOct. 27, 1891 i

